Means for transmitting power from the axles of railway-cars.



Patented Apr. 30, 1912.

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GENERATO [rave/721 071- W. T. MARTERSTEGK.

APPLICATION FILED APR. 28,1911.

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MEANS FOR TRANSMITTING POWER FROM THE AXLES 0P RAILWAY CARS. APPLICATIONFILED APR.28,1911.

1 ,024,5 1 8. Patented Apr. 30, 1912.

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UNITED STATES PATENT. OFFICE.

WILLIAM T. MARTERSTEGK, OF SHARON, PENNSYLVANIA.

MEANS FOR TRANSMITTING POWER FROM THE AXLES OF RAILWAY-CARS.

To all whom it may concern:

Be it known that I, VVILLTAM T. MARTER- s'rnon, citizen of the UnitedStates, residing at Sharon, Pennsylvania, have invented certain new anduseful Improvements in Means for Transmitting Power from the Axles ofRailway-Cars, of which the following is a specification.

My invent-ion is designed to provide effective means for transmittingpower from the axle of railway cars to an electric generator, thecurrent being utilized for lighting or other purposes. I have aimed tosecure a positive drive between the axle and the generator and at thesame time meet all the conditions as to flexibility.

My invention consists of a positive driving connection between the axleand generator with means intermediate of the axle and the shaft of thegenerator for allowing flexibility of the parts so as to permit ofvertical, lateral and longitudinal movement in the connections.

I have illustrated the invention in the accompanying drawing in whichFigure 1 is a plan view partly in section, showing the frame andgenerator with the driving connections in section. Fig. 2 is anelevation of the frame showing the position of the generator and axle.Figs. 3 and 4 show details of construction.

In Figs. 1 and 2 the truck frame at A and B is of usual construction andneeds no particular description. The axle C is also of ordinaryconstruction and indeed it isessential that the standard equipment ofrailways be utilized in any additions thereto as in the presentinstance, and I have aimed to apply my improvements to the ordinaryequipment without requiring any change therein.

In carrying out my invention I plan to get all the advantages of thedirect driving connection between the axle and the generator and to makethis connection dust proof and at the same time flexible in order topermit of sliding and rocking movements between the various partsconstituting the drive, in relation to each other, without sacrificinganything as to strength or durability of the connections.

Referring particularly to Fig. 1, I show at 0,, a split sleeve, the twoparts being adapted to encircle the axle and to be se cured thereon bybolts 1) passing through Specification of Letters Patent.

Application filed April 28, 1911.

Patented Apr. 30, 1912.

Serial No. 623,930.

openings 0 in ears (Z toward the front of the sleeve, the rear ends ofthe sleeve being held by a collar or ring 6 made of split parts andhaving an interior projection j forming annular recesses g, and into oneof these recesses the ends of the sleeve project, the parts of thecollar 6 being held in place by bolts passing through projecting ears.It will be observed that there is space provided at it between the axleand the inner periphery of the sleeve a, and this space is filled withBabbitt metal. I provide a second sleeve 2' which turns with sleeve a,which in turn rotates with the axle, but the sleeve 71 has longitudinalmovement 01 the sleeve a so as to provide for the lateral playnecessary. I secure this longitudinal or lateral movement by providingthe sleeve a with fins or projections extending longitudinally of itsperiphery fitting in keyways or recesses in the inner face of the sleeve2', thus securing rotation of the sleeve 2' with the sleeve a, butpermitting a limited amount of longitudinal movement of the sleeve 2'relatively to the sleeve a. The sleeve 5 is provided with projectingflange 70 which affords a support for a rim gear Z, this gear beingbolted or otherwise secured to the flange, and it is through this gear Zthat the rotation of the axle is communicated to the shaft of thegenerator by connections hereinafter described. A casing m makes adust-proof connection around the parts described and contains thelubricant, fitting closely the sleeve 2' at one end where it is heldbetween the flange 7c and the flanged end of the sleeve as shown at i,the extreme inner end of the casing beingturned in to bear against thesleeve a. This casing is extended to the front around the gear Z,fitting closely the front end of the sleeve a and having outwardlyturned flanges n, fitting guide-ways 0, supported on the frame andpermitting limited up and down movement under the ordinary action of theusual springs. The casing m is adapted to permit of circulation of thelubricant through the space 2 and the channel 3, shown in Fig. 2,extending from the spaces 2 to the main chamber of the casing. Thecasingmz supports the inner end of the communicating driving shaft 70which carries a bevel gear a", meshing with the gear Z, and at itsopposite end the shaft 7) carries a bevel gear 8 meshing with the bevelgear 25. The

bevel gears s and t are covered by a casing a. The shaft 7) is dividedpreferably centrally as at 0, being supported by a sleeve 4) couplingtogether the two ends of the shaft, these ends being provided withsplines fitting corresponding grooves or ways in the sleeve 4/, thuspermitting of the neces sary extensibility of the shaft in the verticalmovement of the casing and axle relative to the fixed position of thegenerator. In order to make this construction dust prooi" I provide asleeve 10 which covers the shaft 2), this sleeve extending betweentubulai projections as, of the gear casings and having slidingconnections at one or both ends so as to give the necessary amount ofmovement to allow the required vertical move ment of the axle and casingin relation to the frame.

It is well known that there is not only vertical movement of the parts,but this movement is sometimes in the nature of a rocking motion andthis rocking movement is provided for by my construction in th use ofbevel gears arranged laterally of the axle so that up and down rockingmotion simply cause the gears to roll one upon the other.

It will be understood that the generator is representative of not onlyan electrical apparatus but of a fan, air compressor or other devicewhich requires to be rotated from the axle.

ll hat I claim is In combination with the axle oi a. railway car and theshaft of a device to be driven, a positive transmission between the twoincluding a bevel gear encircling the axle a transmitting bevel gearengaging the same to one side of the axle, the said gear having rollingconnection with said axle gear, connections between the gear and thepart to be driven, the axle gear having longitudinal. movement on theaxle and vertical move ment therewith, substantially as described.

In testimony whereof, I aflix my signa ture in presence of twowitnesses.

lVILLlAM T. MARTERSTECK.

ll itnesses L. B. MIDDLETON, EITWARD N. SARTEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Ltatents, Washington, D. G.

